SU1392245A1 - Metal arch support - Google Patents

Abstract

FIELD OF THE INVENTION The invention relates to mining, in particular to fastening means - preparatory mine workings of coal mines and mines. The purpose of the invention is to simplify the installation of lining. On racks 1 and top 2, interframe barriers are fixed. The latter consist of 4 longitudinal, 5 transverse and 5 special support frames placed inside the special profiles of the connecting rods, rigidly fastened to the rods 4 in the central part of the fence between the frames. The rods 4 are made with bends on the ends placed inside the special profiles of the support frames. The rods 6 encompass the bends of the rods 4 and the ends of the upper 2 and racks 1. Under the protection of the cantilever protruding interframe fences of the previous frame and temporary safety supports, the racks 1 with interframe fences are installed. I then lift the top to 2 with the interframe barrier under the roof of the development and connect the upper frame of the previous frame with the interframe fence of the previous frame. Upper panels are connected to the post with nodes of compliance 3 and wedge the newly installed support, 4 Il. SS

Description

Fig.Z

FIELD OF THE INVENTION The invention relates to mining, namely to the means of fastening preparatory mine workings of coal mines and mines with metal arched support.

The aim of the invention is to simplify the mounting of the support

Fig. 1 shows a metallic arched malleable, side view; Fig. 2 is the same, the view perpendicular to the plane of the support frame; on fig.Z - connection of two frames lining; Fig, 4 - section A-A in Fig.Z.

The metal arched malleable framework includes frames made from a special profile, consisting of individual elements — racks 1 and top 2, interconnected by clamps of 3. compliant assemblies, and metal lattice interframe barriers formed by longitudinal rods 4 and rigidly connected with transverse rods 5 "The ends of the longitudinal rods 4 are bent to accommodate the connecting rods 6, the length of which exceeds the length of the post 1 or top 2 by an amount sufficient to bend the protruding ends of these st rzhney around the ends spedprofiley

The rods 6 are rigidly connected, for example, in the middle of the interframe fences with the longitudinal rods 4, which makes it possible to bend them along practically any necessary radius when fastening the interframe fences to the fastening elements of all typical sections.

Curved interframe barriers cantilever fastened to the support elements before they are installed in the workings by bending the protruding ends of one of the rods 6 around the ends of special profiles

Metal arched pliable lining set in the workings as follows.

Under the protection of the cantilever jutting interframe fences of the previous frame and temporary safety lining, the racks are installed together with the interframe fences fixed on them so that the rods 6 of the interframe rails of the racks precede the lining frames of the special profiles

connect the stands of two adjacent frames. Then, under the roof, the workings are raised to the top 2 of the lining together with the interframe guard fixed on it and in a similar way connected to the upperframe of the previous frame of the support frame. The final construction erection operations are

connection of racks and tops with the help of clamps of 3 compliant assemblies and wedging of the newly installed lining in accordance with the received certificate of fastening of the production.

When the forces of the mountain pressure exceed the value of the resistance of the support, the supports of the upper 2 supports, together with the interframe barriers fixed on them, are shifted along the uprights 1,

thus protecting the bolt from destruction of the longitudinal rods 4, working as screw frames between the frame barriers, deflecting under the action of shifting rocks, begin to slide along the flanges of the special profile until the gaps between the side sections of these

rods and inner-walls of the special profile formed

When installing frames, the longitudinal rods 4, which interact with (special profiles internal surfaces of the walls and which are additionally held from the displacement by rods 65), are sufficiently fixed on the support frames, thus ensuring reliable operation of all the supports.

Invention Formula

Metal arch lining, including connected by the nodes of compliance of the rack and top to with interframe barriers fixed on them, consisting of longitudinal, transverse and special frame profiles placed inside the special profiles, in order to simplify the mounting of the lining, the longitudinal rods are made with bendings at the ends placed inside the special profiles of the support frames, and the connecting rods are installed with the possibility of covering the bends of the longitudinal rods and the ends of the upper and the posts, and the connecting rods nor rigidly fastened to the longitudinal in the central part of mecram fencing.

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Claims (1)

Claim A metal arch support, including racks connected by knots of flexibility and an upper with fixed interframe fencing, consisting of longitudinal, transverse and inside the special profiles frames of the support rods of the connecting rods. characterized in that, in order to simplify the installation of lining, the longitudinal rods are made with bends at the ends located inside the special profiles of the lining frames, and the connecting rods are installed with the possibility of covering the bends of the longitudinal rods and ends of the upper and struts, and the connecting rods are rigidly fixed to the longitudinal ones in the central parts of inter-frame fences. A ~ A FIG. fy-